The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s
The interdecadal change of the summer (July–August) rainfall over North China (SRNC) is of great concern to the climate research community. Based on the sliding correlation and interdecadal difference analysis, the interdecadal change of SRNC was studied. Results show a significantly wetter period o...
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| Format: | Article |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.957940/full |
| _version_ | 1797999671953588224 |
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| author | Kaijun Wu Haiwen Liu Liang Zhao Yihua Lin Yihua Lin Zhaohong Yang |
| author_facet | Kaijun Wu Haiwen Liu Liang Zhao Yihua Lin Yihua Lin Zhaohong Yang |
| author_sort | Kaijun Wu |
| collection | DOAJ |
| description | The interdecadal change of the summer (July–August) rainfall over North China (SRNC) is of great concern to the climate research community. Based on the sliding correlation and interdecadal difference analysis, the interdecadal change of SRNC was studied. Results show a significantly wetter period of SRNC since the mid-2000s, which was associated with strengthening negative relationship between SRNC and PDO. PDO affected the SRNC through the jet stream in the upper-level and the East Asia–Pacific (EAP) teleconnection pattern. In the negative phase of the PDO since the mid-2000s, the contractive upper-level jet stream in the west of North China resulted in the abnormal updraft over the southern region of North China. Meanwhile, the positive phase of the EAP teleconnection pattern brought warm and wet southeast flow entering North China from its eastern boundary, both bringing more rainfall in North China. The abnormal water vapor transport from the western Pacific was very different from that accompanying the East Asian summer monsoon. |
| first_indexed | 2024-04-11T11:08:22Z |
| format | Article |
| id | doaj.art-39d85b1e02f84e21b628d72fb60b6fb4 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-11T11:08:22Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-39d85b1e02f84e21b628d72fb60b6fb42022-12-22T04:28:13ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-08-011010.3389/feart.2022.957940957940The strengthening relationship between summer rainfall over North China and PDO since the mid-2000sKaijun Wu0Haiwen Liu1Liang Zhao2Yihua Lin3Yihua Lin4Zhaohong Yang5Department of Aviation Meteorology, Civil Aviation University of China, Tianjin, ChinaDepartment of Aviation Meteorology, Civil Aviation University of China, Tianjin, ChinaCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, ChinaCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Numerical Modeling for Atmosphere Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaDepartment of Aviation Meteorology, Civil Aviation University of China, Tianjin, ChinaThe interdecadal change of the summer (July–August) rainfall over North China (SRNC) is of great concern to the climate research community. Based on the sliding correlation and interdecadal difference analysis, the interdecadal change of SRNC was studied. Results show a significantly wetter period of SRNC since the mid-2000s, which was associated with strengthening negative relationship between SRNC and PDO. PDO affected the SRNC through the jet stream in the upper-level and the East Asia–Pacific (EAP) teleconnection pattern. In the negative phase of the PDO since the mid-2000s, the contractive upper-level jet stream in the west of North China resulted in the abnormal updraft over the southern region of North China. Meanwhile, the positive phase of the EAP teleconnection pattern brought warm and wet southeast flow entering North China from its eastern boundary, both bringing more rainfall in North China. The abnormal water vapor transport from the western Pacific was very different from that accompanying the East Asian summer monsoon.https://www.frontiersin.org/articles/10.3389/feart.2022.957940/fullNorth Chinasummer rainfallinterdecadal changePDOEAPjet stream |
| spellingShingle | Kaijun Wu Haiwen Liu Liang Zhao Yihua Lin Yihua Lin Zhaohong Yang The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s Frontiers in Earth Science North China summer rainfall interdecadal change PDO EAP jet stream |
| title | The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s |
| title_full | The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s |
| title_fullStr | The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s |
| title_full_unstemmed | The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s |
| title_short | The strengthening relationship between summer rainfall over North China and PDO since the mid-2000s |
| title_sort | strengthening relationship between summer rainfall over north china and pdo since the mid 2000s |
| topic | North China summer rainfall interdecadal change PDO EAP jet stream |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.957940/full |
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